I'm not great with screenshots in windows. When you are at the main menu in the game, where it says new campaign, load game, lan, etc., clicking on skirmish makes the menu options go away (all the blue words) and just the background is left. Clicking on any of the other options (new campaign, load game) just makes the screen freeze (I can still see all the blue menu options and everything.) When I hit escape, it unfreezes or, if I tried to skirmish, the screen unfreezes and the blue menu options reappear. If that isn't descriptive enough, I can try to get a screenshot.
EDIT: http://imgur.com/jXZzj.jpg
Sorry, I'm on a mac running vmware so I just had to upload it from osx rather than windows. Anyways, that is what happens after I click skirmish and it just stays there. When I hit esc, it reverts back to the regular menu.